Photo

Postal carrier Paul Schimke takes a break to pump water into his bottle at an old-fashioned pump along Lake Harriet Friday, July 6, 2012 in Minneapolis where temperatures reached into the upper 90's for another day during the heat wave. The National Weather Service said the record-breaking heat that has baked the nation’s midsection for several days was slowly moving into the mid-Atlantic states and Northeast. Excessive-heat warnings remained in place Friday for all of Iowa, Indiana and Illinois as well as much of Wisconsin, Michigan, Missouri, Ohio and Kentucky. (AP Photo/Jim Mone)
/ AP